Ace Glass 8193-218 Vacuum Stopcock with 90 Deg. Arms & Easy‑Action UHDPE Handle PTFE Plug, Needle Valve, 0-10 mm Bore

Easy action PTFE plug with hooded handle, threaded into heavy wall glass barrel, permits smooth adjustment. Arms are at 90° angle. Double PTFE ring seal prevents exposure of FETFE backup O-Ring to corrosive gases and liquids. Plug, with hooded handle removed, is bakeable.